13C Nuclear Magnetic Resonance Spectra of Hydrolyzable Tannins. II. Tannins Forming Anomer Mixtures

Tsutomu Hatano, Takashi Yoshida, Takuo Okuda, Tetsuro Shingu

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The glucose carbon signals in the 13C nuclear magnetic resonance (NMR) spectra of hydrolyzable tannins forming anomer mixtures, which differ from each other in the locations of acyl groups, were assigned. The utility of these data was demonstrated by application to the structural assignments of recently isolated dimeric hydrolyzable tannins [e.g., camptothin A (and camptothin B (14)].

Original languageEnglish
Pages (from-to)2925-2933
Number of pages9
JournalChemical and Pharmaceutical Bulletin
Volume36
Issue number8
DOIs
Publication statusPublished - Jan 1 1988

Keywords

  • 2D NMR
  • C-NMR
  • anomer mixture
  • camptothin A
  • camptothin B
  • cornusiin A
  • dimeric hydrolyzable tannin
  • ellagitannin
  • rugosin E
  • tannin

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery

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